Gasolene-motor.



m." 820,010; PATENTEDM-AY-S, 1906. I L. PETTBRSON.

GASOLENB MOTOR. APP-LIOATIQN PI-LED JUNE 6. 1904.

SHEETS-SHEET 1.

Nrr s ns n'rnnr OFFICE.

LUDWI G PETTERSON', OF CHICAGO; ILLINOIS.

GASOLENE-MOTOR- Specification of Letters Patent.

Application filed June 6, 1.904. Serial No. 211.283.

Patented May 8, 1906.

To aZZ whom it may concern: 4

Be it known that I, LU'DWIG Pn'rrnnson, a citizen of the UnitedStatearesiding in Chicago, in the county of Cook and'State of Illinois,have invented a new and useful Im'- rovement in Gasolene-Motors, ofwhich the ollowing is a specification.

This invention relates to the construction of gasolene-engines adaptedto be used upon automobiles. Its object has been to 1mprove uponprevious constructions; and it consists 1n the novel construction ofparts and devices and novel. combinations of parts and deviceshereinafter described.

In the accompanying drawings, Figure 1 is a plan view of my invention,partly in sec-- -tion. Figs. 2 and 3 are sectlons on the lines 2 2 and 33 respectively, of Fig. 1. Fig. 4 is a section on the line 4 4 of Fig.2. Fig. 5 is a detail section of the joint between the crank and one ofthe istons. Fig. 6 is a detail view of the cran and Fig. 7 is a sectionon the line 7 7 of Fig. 4.

In said drawin s, 7 and 8 are two companion two-cycle cy inders arrangedin parallel positions and provided with istons 9 and 10 which areconnected direct y to a peculiarcrank embodied in the driven shaft 14,which is arranged between the cylinders and parallel thereto. Theconnection to the crank is through the medium of two arms 1 1 and 12,loosely supported upon the crank, as hereinafter more fully explained,and in order to permit this connection the proximate sides of thecylinders are cut awaygas seen at. 15, to give the necessary access tothe pistons.

v The crank which is shown detached at Fig.

6 consists of two oppositely-extending inclined cranks-or arms 16 and17, attached to the shaft and a round bar or body 18, connectiinglthe-outer ends of the arms and exten 'ng diagonally across the axis ofthe shaft. Ihe arms 11 and 12 are formed on the o p site sides of aplate 19, located above the bod 18 and secured thereto by a plate or cap20, ocated below the body, and bolts 21, passing through both plates. isfree to turn between the plates, which are sha ed to and loosely incloseit.

, e arms 11 and 12 are flexibly joined to the pistons by the followingconstruction:

The outer ends of the arms are cylindricaland inserted in boxes havingupper and lower vertical pivots 22, fitting corres ndmg openings in theistons, so that t home may swivel or roc in horizontal directions. (See-'ous explosions operating t The body 18 .to the crank, and suchmovement is by reason of the angling position ofthe body of the crankadapted to give the latter a rotarymovement, the plate 19 rocking freelyso as to accommodate itself to the movements ofthe crank. As thepi'stonsare operated simultaneously. in o continuously rotated, each 1pair-ofsimultanee crank throu h a half-rotation. A fly-wheel .24 is desirab ymounted on the shaft 14. The lates 19 and 20 are confined on thecrankodyby the cranks 16 and 17.

The explosion-chambers of the cylinders are shown at 25, and suchchambers are pro-: vide'd with surrounding cooling watei -chambers 30,and the screw-plu 31 and 32in the ends of the cylinder and t ewater-chamber close the core-openingsin the castings. The igniters 34enter the chambers through the openings 33. The air and gasolene are admitted by the the ports 35. he ot er or non-power creatin ends of thecylinders are" closed by suitab e heads 36,forming air-chambers 26,andeach is utilized-as a cushion to the piston and as; means for forcingthe charges ofiair-and gasolene intothe explosion-chamber of theothercylinder through a-s11itable.cross-- assage betweeniit and theexplosion-chant er. This passage is illustrated at Fig. 4andis'indicated at 40. It is provided with two-auto matic or spring closingvalveatheone at 41 permitting the entrance of thefloutenair andgasoleneto the passage from the inletAii and the other at 42 closing the40iteelf.

, posite directions the crank and shaft are y the means described assaes 40 and exhaust by When the pistons move-intothe explosionchambers andcompress the charges of }air' and gasolene therein preparatoryto-ignition,

they'create a vacuum in each'ofthechambers'26, which causes suctionandthe opening of valves 41-, admitting fresh charges of air and gasoleneto said. chambers, and when the ex lesions occur and'the' iet'ons'be'Gib their retuzf -movement" .=ra.ves 41 'o'lose,

an that charges of air and gasolonc are.

Q r 820,010 Y and gases.

The top of the pistons are left 0 en over the boxes 22 23 in order toadmit t e latter, and. after the boxes have been positioned retamingrings or caps 50, inclosing theupper pivots 22 0 the boxes, are'boltedto the pistons. The two cylinders are desirably each I provided with alateral arm 51, forming the under part of one of the bearin of the shaft14. Each cylinder also has aiteral extension 52, forming a junction witharm 51,v asseen at Fig. 4, and bolted thereto. The airpassage 4:0 isformed partly in arm 51 and partly in the extension 52. A. coveringplate55 is preferably placed over-the crank, as seen at Fig. 1.

It will be vunderstood that the construction and'arran'gementillustrated in the drawings and herein specifically described embody myinventionin its preferred form only and that my claims are not strictlylimited thereto, but may be otherwise embodied without departing fromthe spirit thereof. i

1. The combination of companion simultaheously-exploding cylinders,veach having an explosion-chamber at one side of the piston and anair-com ression. chamber at the othen side thereof,- t eexplosion-chamber oi each cylinder being connected by a valved passage:to the air-cbmpression chamber of the ot er cylinder.

2. The combination ofcompanion simultaneously-exploding cylinders eachhaving charges an explosion-chamber at one side of the pis ton and aircompression chamber at the other side thereof, crossassages connectingthe explosion-chamber 0 each cylinder with the ant-com ression chamberof theother cylinder, an valves in said passages regulating the entranceof fresh air to the aircompression chambers and permitting the forcingof the air from the air-compression chambers to the explosion-chambers.l 3. The combination of companion simultaneously-exploding cylinderseach having an explosion-chamber at one side of the piston and aircompression chamber at the er with the explosion chamber 0 each c lindthe air-compression chamber of t e other cylinder, and automaticvalvesAl and 42 controlling such passages.

4. A two 4 cycle gasolene engine having companionsimultaneously-explodin cylinother-side thereof, crossassages connectingv ders, each embodying an explosion-c amber and a compression-chamber,the compressionchamber of one cylinder supplying the. explosion-chamberof the other with air and gasolene, and pistons in said cylindersiyhere-.by the air and gasolene are simnltaneously compressed and forced intothe explosionchambers.

5. Adouble two-cycle engine embody-in cylinders which explodesimultaneonsly an which simultaneously compressair charges,

the compression-chamber of each, cylinder being connected Withtheexplosioneehamber' of the other cylinder.

6. A double two-c ole engine, one eridof each cylinder of whic isutilized to compress the air charges of the other cylinder, theeylinders bein exploded simultaneously and actin-gv simu taneously tocompress the air LUDWIG PETT'ERSON.

Witnesses WILLIM A. GEIGER, PEARL AimAMs.

